Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7682153 | Indicating teeth cleaning time | Peter Hilfinger, Alexander Hilscher, Peter Trawinski | 2010-03-23 |
| 5850655 | Electric toothbrush | Georges Driesen, Michael Drossler | 1998-12-22 |
| 5732433 | Electric toothbrush | Georges Driesen, Michael Drossler | 1998-03-31 |
| 4858639 | Current-pressure transducer, particularly for a vacuum control in automotive vehicles | Stephan Wietschorke-Muhsold | 1989-08-22 |
| 4793373 | Current-pressure transducer, particularly for a vacuum control in automotive vehicles | Stephan Weitschorke-Muhsold | 1988-12-27 |
| 4781161 | Setting member for controlling the quantitative flow of a fluid | Andreas Sausner | 1988-11-01 |